Ultrasonic transducers
US6763722B2 · kind B2 · utility
151Cited by
45References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2001 |
| Grant date | Jul 20, 2004 |
| Priority date | — |
| Expiry date | Nov 1, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2007/0043
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A compact, high-power ultrasonic emitting transducer has an active element such as a piezoelectric element and structure defining a reflective backing interface such as an air interface behind the rear surface of the active element. A liquid is provided in the resonant unit between the backing interface and the active element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.